Its 2018, normal people do not have money to blow. The "normals" are the ones delivering your food, driving you around, doing your laundry, walking your dog, cleaning your house etc.
The "normals" are also people working in management, marketing, and other high-paying professions. SV might have extremely high density of tech people, but programmers are not the only (or even the majority of) high-earners in the West.